Package Dimensions: 9.25 x 8.35 x 2.17 inches; Weight: 9.59 ounces. Model Number: HQDFBA-3PC-COM01-110. Suitable for girls. Available since July 13, 2023. Manufacturer: DNFUNASIN. Warning: Mermaid tails or monofins may impair swimming ability and should only be used by skilled swimmers under adult supervision. SAFETY PRECAUTIONS: For experienced swimmers 3 years and older only. Not a flotation device and requires adult supervision. Size Guide: 3-4T (100-110cm), 5-6Y (110-120cm), 7-8Y (120-130cm), 9-10Y (130-140cm), 10-13Y (140-150cm). Material: Soft, comfortable, and elastic fabric made of polyester and spandex. Avoid contact with sharp surfaces. Hand wash and air dry recommended. Occasions: Ideal for gifts, cosplay, and parties, making little girls feel magical. New styles are designed annually, and we continuously work to improve product durability. For inquiries, please contact us.